| Quantity | Value | Units |
| Atomic number | 115 | |
| Atomic mass | [289.19363(6)] | g mole-1 |
| Specific gravity | ?? | g cm-3 |
| Mean excitation energy | 1199.0 | eV |
| Minimum ionization | 1.092 | MeV g-1cm2 |
| Nuclear collision length | 125.4 | g cm-2 |
| Nuclear interaction length | 223.1 | g cm-2 |
| Pion collision length | 147.9 | g cm-2 |
| Pion interaction length | 248.8 | g cm-2 |
| Radiation length | 5.01 | g cm-2 |
| Critical energy | 5.73 | MeV (for e-) |
| Molière radius | 18.54 | g cm-2 |
| Plasma energy ℏωp | 68.11 | eV |
| Muon critical energy | 111. | GeV |